Detachable furniture-joint



UNITED STATES PATENT OFFICE.

DANIEL I. C. ARNOLD, OF NEW LONDON, OHIO.

DETAC HAB LE FU RNITU RE-JOINT.

SPECIFICATION forming part of Letters Patent No. 434,229, dated August 12, 1890.

Application tiled J annary 6, 1890.

To all whom it may concern.-

Be it known that I, DANIEL J. C. ARNOLD, a citizen of the United States, and a resident of New London, countyof Huron, and State of Ohio, have invented certain new and useful Improvements in Detachable Furniture- Toints, which is especially designed as an Improvement upon the invention of Arthur VV. Carl, for which an application for a United States patent was iled November 5, 1889; and I hereby declare the following to be a full, clear, and exact description of the Invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in the manner of detachably connecting side rails with an end post in the construction of furniture and other devices; and its objects are to strengthen and increase the rigidity of the various parts as well as their durability and lessen the initial cost.y

My invention is adapted to the construction ot' joints Where a pair of side rails are detachably secured to a corner-post; and it consists in the employment of a band or plate of sheet metal having its extremities securely attached to the ends of the side rails and hav- 1ng 1ts central or body portion longitudinally divlded into two or moreportions separated, so as to completely encircle the whole or a portion of the post, and also in the details of construction and arrangement of parts, as hereinafter described, shown in the draw- Ings, and more particularly pointed out in the claim.

In the accompanying drawings, Figures l and 2 are isometric views ot' forms of Iny improved device. Fig. 3 is a detail ot the form shown in Fig. l, and Fig. 4 is a longitudinal section of the head of the post on line .90, Fig. 1.

In the drawings, Figs. l and 2 show a form of the device in which the extremities a of the metal strip A are secured in sawed slots in the ends of the side rails C by screws or pins c, and the main body is slitted twice longitudinally, so as to provide a central band A. This band and the upper and lower portions A2 are then bent apart in opposite the rails.

Serial No. 336,057. (No model.)

directions, the inclosed space thus formed being shaped by a mandrel or d ie to conform to the outline of the head ofthe post B, the upper and lower portions A2 A2 being bent to conform to the inner angle b, while the central band A is bent outward and forced downward into the saW-kerf b', which is preferF ably made with a cylindrical saw, as shown in solid lines, or the band may be made angular, as shown in dotted lines, and two slots be formed in the post at right angles at b2. The sawed slots b or b2 are preferably made to incline slightly outward, as shown in section at Fig. 4, the-effect being to jam slightly the various parts and secure the head of thepost without pins or screws. These may be added, however, wh en necessary.

Fig. 2 shows a form of my invention in which the several bands are designed to encircle the exterior of the post, the extremities a being attached by screws to the ends of To make the rigidity of the parts complete and to prevent the screws from wearing loose in the rails, the ends of the extremities a of the strip A are bent inwardly into shallow saw-kerfs in the rails C, as c', which prevent any lateral motion of the parts. This metal joint, being struck from a single plate and requiring no trimming, makes an eX- tremely simple, strong, and durable joint not liable to become detached by accident, but readily disconnected for transportation and packing.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a corner-joint for furniture or other purposes, a plate or band of metal secured to the DANIEL J. C. ARNOLD.

Witnesses:

RoLLIN C. Pownns, ROLLIN B. POWERS. 

